Picocurie (pCi)

What is Picocurie (pCi)?

Picocurie (pCi) meaning One trillionth (10-12) of the amount of radioactivity represented by a curie (Ci). A curie is the amount of radioactivity that yields 3.7 x 1010 radioactive disintegrations per second (dps). A picocurie yields 2.22 disintegrations per minute (dpm) or 0.037 dps.

 

reference: USGS – National Water-Quality Assessment (NAWQA) Project